diff --git a/enzevalos_iphone/StudySettings.swift b/enzevalos_iphone/StudySettings.swift
index dd0c417f5df6667d6692a54b686d6b2fddac46d7..fcd1df89fcb46916a055ef34dbcf8e706f7dbac9 100644
--- a/enzevalos_iphone/StudySettings.swift
+++ b/enzevalos_iphone/StudySettings.swift
@@ -54,7 +54,8 @@ class StudySettings {
     static var invitationsmode: Inviation = Inviation.load() as! Inviation
     
     /// whether to show a normal inbox (false) or a (currently slightly buggy) categorized interface (true)
-    static var showCategorizedInterface = false
+    static var showCategorizedInterface =  false //|| true
+    static var categorizedInterface_flat = false || true
     static var useAvatars = true
     
     public static var invitationEnabled: Bool {
diff --git a/enzevalos_iphone/SwiftUI/Inbox/categorized/Helpers/UI/CategoryViewInner.swift b/enzevalos_iphone/SwiftUI/Inbox/categorized/Helpers/UI/CategoryViewInner.swift
index 0b142b55991acd15176179c7501880b8a9652713..efb52a4c0cdda7041d0c5c03698072438fca6714 100644
--- a/enzevalos_iphone/SwiftUI/Inbox/categorized/Helpers/UI/CategoryViewInner.swift
+++ b/enzevalos_iphone/SwiftUI/Inbox/categorized/Helpers/UI/CategoryViewInner.swift
@@ -34,7 +34,7 @@ struct CategoryViewInner<Content:View>: View {
             isOpen      : category.isActive
         ){
            content()
-        }.padding(.horizontal, 15).padding(.top, 10)
+        }.padding(.horizontal,  7).padding(.top, StudySettings.categorizedInterface_flat ? 5 : 10)
         .animation(.easeInOut)
     }
 }
@@ -93,7 +93,10 @@ struct NavigatorCard<Content:View> : View {
     
     var body: some View {
         if _size != nil && isResizable {
-            DragResizableCard(shadowElevation: 15, padding:0, height:size){
+            DragResizableCard(
+                shadowElevation: StudySettings.categorizedInterface_flat ? 0 : 15,
+                effect3D: StudySettings.categorizedInterface_flat ? 0 : 5, padding:0, height:size
+            ){
                 inner
                     .padding(.bottom,5)
             }